Finding the Third Proportional to 1,201,617 and 1,859,955

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201,617 : 1,859,955 = 1,859,955 : x
2. Step 2: Convert to fraction form
   1,201,617/1,859,955 = 1,859,955/x
3. Step 3: Cross multiply
   1,201,617x = 1,859,955 × 1,859,955
4. Step 4: Simplify right side
   1,201,617x = 3,459,432,602,025
5. Step 5: Solve for x
   x = 3,459,432,602,025/1,201,617
6. Step 6: Final answer
   x = 2,878,981.07